We're going to solve 7989 multiplied by 8864
7989 × 8864 = 8864 × (7989)
+ 8864 × 9 what gives us 79776
+ 8864 × 80 which equals 709120
+ 8864 × 900 producing 7977600
+ 8864 × 7000 that results in 62048000

= 70814496
